| Word Scramble - Countries | 0 | - | 4.87 | 2,102,945 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 165,991 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,596 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,629 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,744 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,786 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,260 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,626,998 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,507,543 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,122 |
| Countries with Four Letters | 0 | - | 4.99 | 422,828 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,740 |
| Landlocked Countries | 0 | - | 4.99 | 421,066 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,825 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 182,911 |
| Country Chain | 0 | - | 4.96 | 217,202 |
| Countries by Emojis | 0 | - | 4.99 | 239,973 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,001 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,969 |
| Islands by Country #1 | 0 | - | 4.88 | 175,354 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,576 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,942 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,762 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,771,809 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,999 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,579 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,641 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,006 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,235 |
| Name a Valid Country #1 | 0 | - | 4.99 | 290,366 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,964 |
| Name a Valid Country #4 | 0 | - | 4.97 | 255,819 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,208 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,606 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 721,570 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,014 |
| Himalayan Countries | 0 | - | 4.95 | 138,327 |
| Andean Countries | 0 | - | 4.93 | 84,382 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,604 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,518 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,233 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,638 |
| Danube Countries | 0 | - | 4.97 | 71,905 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,883 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,308 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,105 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,578 |
| European Landlocked Countries | 0 | - | 4.99 | 147,037 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,469 |
| Countries with the Most Species | 0 | - | 4.99 | 103,154 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,620 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,535 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,678 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,474 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,154 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,562 |
| Countries in the Alps | 0 | - | 4.87 | 118,051 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,392 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,846 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,582 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,510 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,392 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,875 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,547 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,405 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,115 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,755 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,588 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,450 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,123 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,388 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,421 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,674 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,219 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,729 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,890 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,485 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,834 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,147 |
| Largest Countries By Category | 0 | - | 4.97 | 158,026 |
| Countries by Countries | 0 | - | 4.96 | 63,088 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,549 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,240 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,570 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,780 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,246 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,644 |
| Island Countries | 0 | - | 4.99 | 710,673 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,651 |
| Northernmost Countries | 0 | - | 4.99 | 361,532 |
| Countries of South America | 0 | - | 5.00 | 925,919 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,149 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,874,027 |
| "Land" Countries | 0 | - | 4.98 | 337,026 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,023 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,260 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,181 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,800 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,520 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,247 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,301 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,253 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,346 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,948 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,132 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,381 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,013 |
| Random Countries by Borders | 0 | - | 4.99 | 82,513 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,206 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,641 |
| Countries with Megacities | 0 | - | 4.99 | 263,906 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,489 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,336 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,766 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,391 |
| Countries by Official Language | 0 | - | 4.95 | 195,055 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,121 |
| Countries in their Native Language | 0 | - | 4.99 | 198,608 |
| Independence from Whom | 0 | - | 4.99 | 211,867 |
| Subdivisions by Country | 0 | - | 4.86 | 50,386 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,563 |
| Megadiverse Countries | 0 | - | 4.96 | 134,933 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,917 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,294 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,872 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,075 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,995 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,537 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,336 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,976 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,594 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,053 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,479 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,824 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,133 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,909 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,296 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,440 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,894 |
| World Map Quiz | 0 | - | 4.81 | 64,960 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,235 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,736 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,260 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,902 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,164 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,887 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,950 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,804 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,924 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,219 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,391 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,502 |
| Widest Countries East to West | 0 | - | 4.92 | 129,564 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,429 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,267 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,087 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,696 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,476 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,763 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,333 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,780 |
| Countries with Double Letters | 0 | - | 4.96 | 95,956 |
| Countries that End in N | 0 | - | 4.95 | 170,862 |
| Countries with Five Letters | 0 | - | 4.96 | 281,986 |
| Countries with Six Letters | 0 | - | 4.94 | 213,277 |
| Countries with W | 0 | - | 4.97 | 160,129 |
| Countries with Z | 0 | - | 4.98 | 291,153 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,484 |
| Countries That End in U | 0 | - | 4.95 | 120,736 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,254 |
| Countries that End in O | 0 | - | 4.92 | 159,430 |
| Countries that End in R | 0 | - | 4.87 | 118,900 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,668 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,852 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,553 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,379 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,287 |
| Countries That End in Y | 0 | - | 4.91 | 185,806 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,746 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,729 |
| Countries that End in I | 0 | - | 4.94 | 135,030 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,918 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,752 |
| Countries That End in NIA | 0 | - | 4.92 | 109,699 |
| Countries That End in BIA | 0 | - | 4.93 | 149,098 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,987 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,315 |
| Countries That End in RIA | 0 | - | 4.93 | 126,735 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,909 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,310 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,539 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,943 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,510 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,507 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,926 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,412 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,419 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,360 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,154 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,849 |
